"They are not living up to the spirit of the agreement, I can tell you that", Trump told reporters at a press conference with Italian Prime Minister Paolo Gentiloni on Thursday.

At a joint news conference with Italian Prime Minister Paolo Gentiloni on Thursday, President Donald Trump spoke about plans to amend the Affordable Care Act and a needed funding deal to avoid a government shutdown next week.

Obama considered the nuclear agreement one of his most important foreign-policy achievements, saying it would end the threat that Iran would have a nuclear weapon.

Tillerson added that the NSC "will evaluate whether suspension of sanctions related to Iran pursuant to the JCPOA is vital to the national security interests of the United States". And White House budget director Mick Mulvaney said money for Trump's border wall must be part of the legislation passed to fund the federal government, along with money to hire more immigration agents. Since taking office he has not indicated whether and how he will do so.

Trump's wrangling on foreign policy issues overseas comes amid debate in the USA over his priorities at home. "Today, we heard unsubstantiated allegations against my country which I categorically reject as a misleading propaganda campaign against Iran and its role in the region". "The United States is keen to avoid a second piece of evidence that strategic patience is a failed approach".

Tillerson expressed concerns about Tehran's continued support for Syrian President Bashar Assad and its hostility toward Israel.

In his letter to the Congress on Wednesday, US Secretary of State Rex Tillerson, acknowledged that Iran was compliant to the accord, but blasted the country as "the world's leading state sponsor of terrorism". Mr Tillerson said the U.S. is conducting a comprehensive review of its Iran policy and added that the Obama-era nuclear deal only "delays" Tehran's goal of becoming a nuclear state. Trump praises Chinese efforts to rein in "the menace of North Korea" after North Korean state media warns the United States of a "super-mighty preemptive strike." U.S.